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Listed as The old grok-code-fast-1 model was retired on May 15, 2026 and routed to grok-build-0.1. Grok Build is the current successor direction: the hosted CLI beta is tied to SuperGrok or X Premium Plus, the API is paid, and xAI has also open-sourced a local-first harness. This is not a simple free coding assistant, but it remains a useful current developer resource when the old name is not left stale.
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Coding & Dev Checked Oct 13, 2026
Grok Build
Use xAI's current Grok Build direction for agentic coding and local-first software work.
Best for: Developers evaluating an xAI coding agent, CLI workflow, or open harness for web development.
What you can do with it
- Explore an agentic coding workflow
- Build or edit a web project from a terminal
- Migrate an old Grok Code Fast 1 integration
- Evaluate xAI coding model behavior
- Inspect a local-first coding harness
Good to know
- Current successor to retired Grok Code Fast 1
- Agentic coding and web development focus
- CLI and local-first direction
- Official migration guidance
Limitations
- Old model name is retired
- Hosted access is plan-dependent
- API use is paid
Other official links
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